Construct and measure a segment; midpoint

1) Construct a segment Toolbar Image 2) Label (Toolbar Image)the endpoints of the segment as points A and B. 3) Measure the length of the segment. Toolbar Image 4) Drag the segment and change its length. Toolbar Image 5) Construct the midpoint and label as point C. Toolbar Image 6) Measure AC and CB to confirm C is the midpoint.